3 files changed, 4 insertions, 14 deletions
diff --git a/weed/server/filer_server_handlers_read.go b/weed/server/filer_server_handlers_read.go
index f77462adb..e210f4bdf 100644
--- a/weed/server/filer_server_handlers_read.go
+++ b/weed/server/filer_server_handlers_read.go
@@ -61,15 +61,7 @@ func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request,
 		return
 	}
 
-	if len(entry.Chunks) == 0 && len(entry.Content) == 0 {
-		glog.V(1).Infof("no file chunks for %s, attr=%+v", path, entry.Attr)
-		stats.FilerRequestCounter.WithLabelValues("read.nocontent").Inc()
-		w.WriteHeader(http.StatusNoContent)
-		return
-	}
-
 	w.Header().Set("Accept-Ranges", "bytes")
-	w.Header().Set("Last-Modified", entry.Attr.Mtime.Format(http.TimeFormat))
 
 	// mime type
 	mimeType := entry.Attr.Mime
@@ -164,6 +156,7 @@ func (fs *FilerServer) GetOrHeadHandler(w http.ResponseWriter, r *http.Request,
 		}
 		if offset+size <= int64(len(entry.Content)) {
 			_, err := writer.Write(entry.Content[offset : offset+size])
+			glog.Errorf("failed to write entry content: %v", err)
 			return err
 		}
 		return filer.StreamContent(fs.filer.MasterClient, writer, entry.Chunks, offset, size)
diff --git a/weed/server/master_grpc_server_volume.go b/weed/server/master_grpc_server_volume.go
index 29aff5c0b..156afd4a1 100644
--- a/weed/server/master_grpc_server_volume.go
+++ b/weed/server/master_grpc_server_volume.go
@@ -77,7 +77,7 @@ func (ms *MasterServer) Assign(ctx context.Context, req *master_pb.AssignRequest
 
 	if !ms.Topo.HasWritableVolume(option) {
 		if ms.Topo.AvailableSpaceFor(option) <= 0 {
-			return nil, fmt.Errorf("no free volumes left for "+option.String())
+			return nil, fmt.Errorf("no free volumes left for " + option.String())
 		}
 		ms.vgLock.Lock()
 		if !ms.Topo.HasWritableVolume(option) {
@@ -122,11 +122,8 @@ func (ms *MasterServer) Statistics(ctx context.Context, req *master_pb.Statistic
 
 	volumeLayout := ms.Topo.GetVolumeLayout(req.Collection, replicaPlacement, ttl, types.ToDiskType(req.DiskType))
 	stats := volumeLayout.Stats()
-
-	totalSize := ms.Topo.GetDiskUsages().GetMaxVolumeCount() * int64(ms.option.VolumeSizeLimitMB) * 1024 * 1024
-
 	resp := &master_pb.StatisticsResponse{
-		TotalSize: uint64(totalSize),
+		TotalSize: stats.TotalSize,
 		UsedSize:  stats.UsedSize,
 		FileCount: stats.FileCount,
 	}
diff --git a/weed/server/volume_grpc_copy.go b/weed/server/volume_grpc_copy.go
index 3b6524df8..cf9f9f777 100644
--- a/weed/server/volume_grpc_copy.go
+++ b/weed/server/volume_grpc_copy.go
@@ -61,7 +61,7 @@ func (vs *VolumeServer) VolumeCopy(ctx context.Context, req *volume_server_pb.Vo
 		}
 		location := vs.store.FindFreeLocation(types.ToDiskType(diskType))
 		if location == nil {
-			return fmt.Errorf("no space left")
+			return fmt.Errorf("no space left for disk type %s", types.ToDiskType(diskType).ReadableString())
 		}
 
 		dataBaseFileName = storage.VolumeFileName(location.Directory, volFileInfoResp.Collection, int(req.VolumeId))